The elastic strain energy of a unit length of an edge dislocation as compared to that of a screw dislocation is____________________?

Question: Needles are produced by
[A].

forging

[B].

swaging

[C].

extrusion

[D].

machining

Answer: Option B

Explanation:

No answer description available for this question.

Question: Annealing of metal does not
[A].

precede its wire drawing.

[B].

induce softness and removes stresses & dissolved gases.

[C].

refine the crystalline structure & produce a definite microstructure.

[D].

alter toughness, ductility and magnetic & electrical or other physical properties.

Answer: Option A

Explanation:

No answer description available for this question.

Question: Addition of __________ to steel can not impart it high strength at elevated temperature.
[A].

nickel

[B].

magnesium

[C].

silicon

[D].

manganese

Answer: Option B

Explanation:

No answer description available for this question.